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Boulder Ventures is an early-stage venture capital firm based in Boulder, Colorado, investing in information technology and biotechnology companies across the Colorado Front Range and the Mid-Atlantic region. Its most recent closed fund, Boulder Ventures VIII, raised $58 million in 2022.
They made 2 investments in the last 12 months. Their most common stage is series-b (46% of deals). Average disclosed round size is $39.3M (across 39 rounds with reported amounts).
Portfolio
31
Fund Size
$58M
Top Stage
Series B
Last 12 Mo
2
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
41 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Ambrosia Biosciences Inc. | Series B | $100M | Mar 2026 |
 Ambrosia Bio | Series B | $100M | Mar 2026 |
| Ambrosia Bio | Series B | $100M | Jan 2026 |
 Mineralys Therapeutics | Series B | $118M | Jun 2022 |
| MMineralys | Series B | $118M | Jun 2022 |
 DMC | Series B | $39M | Jan 2022 |
| MMineralys | Series B | $118M | Jan 2022 |
| MMineralys Therapeutics, Inc. | Series B | $118M | Jan 2022 |
 PeopleReign | Unknown | $4M | Jan 2022 |
 DMC Biotechnologies | Series B | $34M | Dec 2021 |
| YYoureka | Series A | $8.5M | Aug 2021 |
| LLightDeck Diagnostics | Series B | $11M | Oct 2020 |
 Lightdeck | Series B | $11M | Oct 2020 |
 ArcherDX | Series B | $60M | May 2019 |
 Stardog | Series B | $9M | Oct 2017 |
| SStardog Union | Series A | $6M | Oct 2017 |
| SSyncHR | Growth | $16M | Jul 2017 |
| Stardog | Seed | $2.3M | Jan 2016 |
 miRagen Therapeutics, Inc. | Series C | $41M | Nov 2015 |
| CClarabridge | Series D | $80M | Jan 2013 |
| ZZenoss | Series C | $25M | Oct 2012 |
| miRagen Therapeutics, Inc. | Series B | $20M | Apr 2012 |
| miRagen Therapeutics, Inc. | Series A | $20M | Jan 2012 |
| MmiRagen | Series C | $41M | Jan 2012 |
| BBaroFold | Series A | $12M | Jan 2007 |
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Top Co-Investors
Samsara BioCapital8 shared
Grotech Ventures6 shared
HBM Healthcare Investments6 shared
Andera Partners5 shared
Adams Street Partners5 shared
Ysios Capital5 shared
SR One5 shared
Sectoral Asset Management5 shared
RA Capital Management5 shared
Rock Springs Capital5 shared
Catalys Pacific5 shared
Atlas Venture5 shared
JAFCO Group Co., Ltd.5 shared
Amgen Ventures5 shared
Redmile Group4 shared
Broadview Ventures4 shared
Deep Track Capital3 shared
Blue Owl Capital2 shared
Threshold Ventures2 shared
Tenfore Holdings2 shared
Last updated: 20 October 2026